









package com.company.m.command.section2;

/**
 * @author cbf4Life cbf4life@126.com
 * I'm glad to share my knowledge with you all.
 * ��Ŀ��ֳ��������飬ÿ���黹��Ҫ������ɾ�ĵ�����
 */
public abstract class Group {

	
	public abstract void find();
	
	
	public abstract void add();
	
	
	public abstract void delete();
	
	
	public abstract void change();
	
	
	public abstract void plan();
	
	
	public void rollBack(){
		
	}
}